National Science Olympiad Forum By SOF Olympiad Trainer - Page 656
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Sarthak Gupta from DPS, Haryana
Subject :NSO    Class : Class 4

Ans 1:

PRAGWANSH JENA from DELHI PUBLIC SCHOOL, Raipur
Class : Class 8

Ans 2:

Koyel Biswas from Adamas World School, Kolkata
Class : Class 5

Ans 3:

Malavya Chaturvedi from Study Hall, Lucknow
Class : Class 8
Answer is C

Ans 4:

Bharghavi V from Vedavalli vidyalaya senior secondary school , Walajapet
Class : Class 4
C auto motor other we should ride

Ans 5:

SHAH HITANSH JINESH from S H KHARAWALA, AHMEDABAD
Class : Class 8
The Answer is C. NOW THE QUESTION IS HOW? THE ANSWER IS THE MACHINES SHOWN IN PICTURE A,B,D RUNS BY MUSCULAR . FORCE. THE OPTION C RUNS BY MOTOR.

Ans 6:

Saarth Agrawal from Podar International School , Mumbai
Class : Class 6
c

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arpit12345 from Ryan International School, New Delhi
Subject :NSO    Class : Class 10

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Anirudh Thakkar from Mata gujri public school, Chak suhele wala
Subject :NSO    Class : Class 3

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Ashmi Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Subject :NSO    Class : Class 2

Ans 1:

Reyansh Sarkar from Delhi Public School, Chandigarh
Class : Class 5
Option D is not incorrect, since earth's position change and not sun's. Further, option C should be the wrong answer, since shadow length are same in 10AM and 2 PM, 11AM, 1 PM and likewise

Ans 2:

Mahi Chandra from ICON School of Excellence, Bengaluru
Class : Class 3
Sun's position doesn't change, we see it changing due to earth's rotation i.e. earth's changing position. Then how D is incorrect option. No option is incorrect in this question.

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Kaustubhi Reddy from Meridian hyderabad, Hyderabad
Subject :NSO    Class : Class 5

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ananya singh from doon international school, Dehradun
Subject :NSO    Class : Class 6

Ans 1:

Nikkita from Euroschool Whitefield, Bengaluru
Class : Class 6
the answer is (a) because the more the height of the ramp the more you need to give force

Ans 2:

MADDILETI REDDY MARAM REDDY from NVN, VIJAYAWADA
Class : Class 6
A

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ALBERT BERKMANS from ZYDUS SCHOOL FOR EXCELLENCE, AHMEDABAD
Subject :NSO    Class : Class 2

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Sayantan from Whitefiels Global School, Bangalore
Subject :NSO    Class : Class 4

Ans 1:

RAHUL SINHA from D.A.V Public Koyla Nagar Dhanbad, dhanbad
Class : Class 7
Rotation causes day and night. While revolution causes change in season.

Ans 2:

Prathamesh from Gopals Garden High School, Mumbai
Class : Class 4
Rotation of earth causes day and night and change of seasons.

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Sayantan from Whitefiels Global School, Bangalore
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is A.

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Sarthak Gupta from DPS, Haryana
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

Ans 2:

Aarav Gupta from TSRS Aravali, Gurugram
Class : Class 7
d

Ans 3:

Vihaan Nair from Ambassador School, DUBAI
Class : Class 8
d

Ans 4:

Rajat mokashe from podar international school , Parbhani
Class : Class 4
d

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